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Acquisitions - (Additional Information) (Detail) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended
--- | --- | ---
Dec. 07, 2018 | Jun. 30, 2019 | Jul. 01, 2018
Business Acquisition [Line Items] |  |  |
Closing day spot rate (USD per share) | $ 79.20 |  |
Amortization of intangible assets |  | $ 7,316 | $ 2,069
Amortization of intangible assets, remainder of 2020 |  | 22,175 |
Amortization of intangible assets, 2021 |  | 29,237 |
Amortization of intangible assets, 2022 |  | 28,993 |
Amortization of intangible assets, 2023 |  | 27,694 |
Amortization of intangible assets, 2024 |  | 24,287 |
Alpha |  |  |
Business Acquisition [Line Items] |  |  |
Initial purchase consideration | $ 750,000 |  |
Consideration transferred | 742,502 |  |
Estimated tax-deductible goodwill |  | 42,262 |
Payments to acquire businesses | 650,000 |  |
Shares issued in acquisition, value | 93,268 |  |
Working capital adjustment | $ 766 |  |
Shares issued in acquisition (USD per share) | $ 84.92 |  |
Alpha | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets |  | 221,000 |
Trademarks | Alpha |  |  |
Business Acquisition [Line Items] |  |  |
Acquired indefinite-lived intangible assets |  | $ 56,000 |
Common Stock | Alpha |  |  |
Business Acquisition [Line Items] |  |  |
Shares issued in acquisition (in shares) | 1,177,630 |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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